Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 119 · 40 questions

Engineer's tip (Find the topic, use the idea): Find the topic: design process, force, machine, lever, structure, material, bridge or scale. Use that lesson’s rule — what is in the middle, load × distance = effort × distance, work = force × distance, real = drawing × scale. Write the calculation before you answer.

1. 1.⚖️ A lever bar balances. The load is ? N at 10 cm from the fulcrum. The effort is 40 N at 20 cm from the fulcrum on the other side. What is the missing force in newtons?
2. 2.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) an early test model (d) the final product
3. 3.🏋️ A smooth ramp is 6 m long and rises 2 m. What effort pushes a 1800 N box up it, in newtons? (ideal ramp, no friction)
4. 4.🪝 A well winch has a handle (wheel) of radius 6 cm turning an axle of radius 1 cm. What is its mechanical advantage (MA)?
5. 5.🧑‍🔧 Which kind of engineer makes medicines in bulk? (a) biomedical (b) computer (c) civil (d) chemical
6. 6.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 2 N, a carpet 3 N, sandpaper 4 N, a glass sheet 1 N. Which surface gave the most friction? (a) a wooden plank (b) a carpet (c) sandpaper (d) a glass sheet
7. 7.Which of these is in compression (pushed)? (a) a tow rope on a car (b) a tall bridge tower (c) a swing chain (d) a tent guy rope
8. 8.📐 On a plan, 1 cm stands for 5 m. A real bridge is 65 m long. How long is it on the plan, in centimetres?
9. 9.⚙️ Which simple machine is a flagpole rope wheel? (a) pulley (b) wedge (c) wheel and axle (d) screw
10. 10.🤝 A teammate’s idea seems odd. What should you do first? (a) listen and ask why (b) ignore it (c) walk away (d) laugh at it
11. 11.Which of these happens in the Create step? (a) follow the plan to build (b) find the limits (c) dream up possible fixes (d) define the problem
12. 12.🌉 Which bridge type: “the simplest bridge”? (a) beam bridge (b) arch bridge (c) suspension bridge
13. 13.Which of these is a screw? (a) a claw hammer on a nail (b) a wheelchair ramp (c) a jar lid (d) a door stopper
14. 14.📋 Constraint: the tower must be no taller than 50 cm. The team’s tower is 44 cm tall. Is it within the constraint? (a) Yes (b) No
15. 15.True or false: a computer engineer plans a space mission. (a) False (b) True
16. 16.True or false: to skip writing results is poor testing. (a) False (b) True
17. 17.Which of these uses a beam? (a) a fort gateway (b) a slab over a canal (c) a crane arm (d) an igloo
18. 18.Which of these is caused by gravity? (a) squeezing a lemon (b) a river flows downhill (c) lifting a school bag (d) a magnet picks up pins
19. 19.🛠️ A scientist asks “why does it happen?”. An engineer mostly asks … (a) who won the match? (b) why is the sky blue? (c) how can we build it? (d) what is for lunch?
20. 20.🔍 Which is the odd one out? (a) a river (b) a banyan tree (c) a satellite (d) a mountain
21. 21.🔄 Which design-process step is it to brainstorm many ideas? (a) Create (b) Ask (c) Test (d) Imagine
22. 22.⚖️ In a class 3 lever, what is in the middle? (a) the effort (b) the pulley (c) the load (d) the fulcrum
23. 23.True or false: a pillar under a roof is in tension (pulled). (a) True (b) False
24. 24.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 8 N, a glass sheet 2 N, a wooden plank 3 N, a carpet 6 N. How many newtons more were needed on sandpaper than on a glass sheet?
25. 25.🧱 Which property matters most for an oven glove? (a) waterproof (b) transparent (c) heat insulator (d) flexible
26. 26.🧑‍🔧 Which kind of engineer plans a space mission? (a) civil (b) biomedical (c) aerospace (d) electrical
27. 27.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 7 N, ice 4 N, a glass sheet 5 N, a wooden plank 6 N. Which surface gave the most friction? (a) a glass sheet (b) ice (c) a wooden plank (d) sandpaper
28. 28.🪢 A sign weighing 80 N hangs from 2 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
29. 29.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) chemical (b) mechanical (c) biomedical (d) civil
30. 30.🦺 In the workshop, is it safe to leave tools on the floor? (a) safe (b) not safe
31. 31.🏋️ A force of 490 N did 2450 J of work. How many metres did the object move?
32. 32.True or false: “keep ice for 1 hour” is a criterion (a goal). (a) False (b) True
33. 33.True or false: “keep ice for 1 hour” is a constraint (a limit). (a) True (b) False
34. 34.🛞 More or less friction: a wheel on ball bearings? (a) more friction (b) less friction
35. 35.🔍 Which is the odd one out? (a) a seesaw (b) a playground slide (c) a claw hammer on a nail (d) a nutcracker
36. 36.🌉 A beam bridge is 150 m long. Piers split it into equal spans of 30 m. How many spans are there?
37. 37.⚖️ A seesaw balances. Meena (? N) sits 4 m from the pivot on one side; Zoya (760 N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
38. 38.🦺 What protects your eyes when sawing or drilling? (a) nothing (b) safety goggles (c) a cap (d) sunglasses
39. 39.📐 A beam is 690 cm long. How long is it in metres? =
40. 40.🛠️ Is a volcano made by engineers or found in nature? (a) made by engineers (b) found in nature

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